Im going diggin today so here goes:

1) Always check the vinyl itself, look and you can find any quiet breaks in the music

2) Names - After digging and being a fan of music for a while you start to build up a database of names...you might see something like Drums - Brian Bennet which makes you want to pick the record

3) Instruments - If there is a sleeve inside or information on the back then read and see if theres any instruments you like...personally I enjoy all instruments but there might be something obscure that will catch your eye i.e Sitar, Thumb Piano, Moog

4) Year...you can sort of get an idea of the sound quality and some timbral of tonal aspects of the recording by the date...you may also have favourite years...mine is possibly 77' off the top of my head

5) Cover - They say never judge a book by a cover but with art (even books) I sometimes do and it seems to work for me...Art is a total package and experimental or serious artists will always want all aspects of their world to be expressive...this isnt always a good lead though, keep in mind 1-4 whilst looking for just covers...

6) Price - Always go for the cheap ones that you think may have something on rather than buying the one ill looking record that is expensive as hell if you are on a budget....if you are rich buy anything lol remember any record can be used in some way

hope this helps somewhat

usually just go with your gut feeling

I will make a post later about anything I found and why I chose it if you like...I would like to ramble about it anyway...big passion of mine

peace

oh and as far as technique I just build up a collection of sounds...I think later on I may label some as in drums, sfx, keyboard part, loop...etc

As far as the creative process I havent sampled from vinyl much but I assume its gonna be the same if not better due to the sound quality

I usually chop up some stuff and date a folder

I will always come back to stuff...re-chop some stuff

You dont have to do everything at once

if you dont feel articulate and patient try just practising keyboards, go out and freestyle, go to an art gallery

come back later have a cup of tea and sit down with something and have a go